Index Catalog // ScholarsArchive@OSU

Turbulence in the bottom boundary layer

Creator:: Newberger, Priscilla
Resource Type:: Dissertation
Full Text:: Batchelor spectrum Mixing and the Bottom Nepheloid Layer P. A. Newberger School of Oceanography Oregon

Forcing a three-dimensional, hydrostatic, primitive-equation model for application in the surf zone : 1. formulation

Creator:: Newberger, P. A. and Allen, John S.
Abstract:: An Eulerian analysis for wave forcing of three-dimensional (3D) wave-averaged mean circulation in the surf zone is presented. The objective is to develop a dynamically consistent formulation for applications in a 3D primitive equation model. The analysis is carried out for the case of shallow-water linear waves interacting with wave-averaged...
Resource Type:: Article
Full Text:: problems, Rev. Geophys., 20, 851–875. Newberger, P. A., and J. S. Allen (2007), Forcing a three

An inertial subrange in microstructure spectra

Creator:: Newberger, P. A. and Caldwell, Douglas R.
Abstract:: An inertial subrange was found in spectra calculated from vertical profiles of temperature gradient recorded in the bottom boundary layer of the Oregon shelf. Spectra were calculated for 53-cm vertical segments. An ensemble average of those spectra that were fully resolved and had high Cox number was compared to the...
Resource Type:: Article
Full Text:: Spectra P. A. NEWBERGER AND D. R. CALDWELL School of Oceanography, Oregon State University, Corvallis

On Symmetric Instabilities in Oceanic Bottom Boundary Layers

Creator:: Allen, J. S. and Newberger, P. A.
Abstract:: Model studies of two-dimensional, time-dependent, wind-forced, stratified downwelling circulation on the continental shelf have shown that the near-bottom offshore flow can develop time- and space-dependent fluctuations involving spatially periodic separation and reattachment of the bottom boundary layer and accompanying recirculation cells. Based primarily on the observation that the potential vorticity...
Resource Type:: Article
Full Text:: AND P. A. NEWBERGER College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis

Downwelling Circulation on the Oregon Continental Shelf. Part I: Response to Idealized Forcing

Creator:: Allen, J. S. and Newberger, P. A.
Abstract:: Time-dependent downwelling on the Oregon continental shelf is studied with a two-dimensional approximation, that is, spatial variations across shelf and with depth, using the Blumberg-Mellor, finite-difference, stratified, hydrostatic, primitive equation model. The time-dependent response of a coastal ocean at rest to constant, downwelling-favorable wind stress is examined. Topography and stratification...
Resource Type:: Article

On Intermediate Models for Stratified Flow

Creator:: Allen, J. S. and Newberger, P. A.
Abstract:: Intermediate models contain physics between that in the primitive equations and that in the quasigeostrophic equations. The specific objective here is to investigate the absolute and relative accuracy of several intermediate models for stratified flow by a comparison of numerical finite-difference solutions with those of the primitive equations (PE) and...
Resource Type:: Article

On Intermediate Models for Barotropic Continental Shelf and Slope Flow Fields. Part II: Comparison of Numerical Model Solutions in Doubly Periodic Domains

Creator:: Barth, J. A., Allen, J. S., and Newberger, P. A.
Abstract:: As part of a program to improve understanding of the dynamics of the complicated, vigorous eddy and jet flow fields recently observed over the continental shelf and slope, we investigate the potential of intermediate models for use in both process and data assimilation studies of these flows. Intermediate models incorporate...
Resource Type:: Article

Nonlinear shear instabilities of alongshore currents over barred beaches

Creator:: Slinn, Donald N., Allen, J. S., Newberger, P. A., and Holman, Robert A.
Abstract:: The nonlinear dynamics of finite amplitude shear instabilities of alongshore currents in the nearshore surf zone over barred beach topography are studied using numerical experiments. These experiments extend the recent study of Allen et al. [1996], which utilized plane beach (constant slope) topography by including shore-parallel sandbars. The model involves...
Resource Type:: Article

On Intermediate Models for Barotropic Continental Shelf and Slope Flow Fields. Part III: Comparison of Numerical Model Solutions in Periodic Channels

Creator:: Allen, J. S., Barth, J. A., and Newberger, P. A.
Abstract:: The study of intermediate models for barotropic continental shelf and slope flow fields initiated in Parts I and II is continued. The objective is to investigate the possible use of intermediate models for process and data assimilation studies of nonlinear mesoscale eddy and jet current fields over the continental shelf...
Resource Type:: Article

On Intermediate Models for Barotropic Continental Shelf and Slope Flow Fields. Part I: Formulation and Comparison of Exact Solutions

Creator:: Allen, J. S., Barth, J. A., and Newberger, P. A.
Abstract:: Motivated by the general objective of pursuing oceanographic process and data assimilation studies of the complex, nonlinear eddy and jet current fields observed over the continental shelf and slope off the west coast of the United States, we investigate the use of intermediate models for that purpose. Intermediate models contain...
Resource Type:: Article

ScholarsArchive@OSU

Turbulence in the bottom boundary layer

Forcing a three-dimensional, hydrostatic, primitive-equation model for application in the surf zone : 1. formulation

An inertial subrange in microstructure spectra

On Symmetric Instabilities in Oceanic Bottom Boundary Layers

Downwelling Circulation on the Oregon Continental Shelf. Part I: Response to Idealized Forcing

On Intermediate Models for Stratified Flow

On Intermediate Models for Barotropic Continental Shelf and Slope Flow Fields. Part II: Comparison of Numerical Model Solutions in Doubly Periodic Domains

Nonlinear shear instabilities of alongshore currents over barred beaches

On Intermediate Models for Barotropic Continental Shelf and Slope Flow Fields. Part III: Comparison of Numerical Model Solutions in Periodic Channels

On Intermediate Models for Barotropic Continental Shelf and Slope Flow Fields. Part I: Formulation and Comparison of Exact Solutions

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